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3%%This page is strictly about the classic continuity. Please do NOT add tropes about the 2016 reboot.
4%%All tropes about the reboot belong on https://tvtropes.org/Characters/Ben102016.
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7%%ZeroContextExamples are not allowed on wiki pages. All such examples have been commented out. Please add proper context before uncommenting them; "See Trope X" is not considered context. Thank you.
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10[[center:[[WMG:''Franchise/Ben10'' [[Characters/Ben10 franchise character index]]\
11[-'''Cast:''' [[Characters/Ben10MainCharacters Main Characters]] ([[Characters/Ben10BenTennyson Ben Tennyson]], [[Characters/Ben10OmnitrixAliens The Omnitrix]]) | [[Characters/Ben10SupportingCharacters Supporting Characters]]\
12'''Omnitrix Aliens:''' [[Characters/Ben10OmnitrixAliensTheOriginalSeries Original Series]] | [[Characters/Ben10OmnitrixAliensAlienForce Alien Force]] | [[Characters/Ben10OmnitrixAliensUltimateAlien Ultimate Alien]] | [[Characters/Ben10OmnitrixAliensOmniverse Omniverse]]\
13'''Villains:''' [[Characters/Ben10VillainsOriginalSeries Original Series]] ([[Characters/Ben10Vilgax Vilgax]], [[Characters/Ben10ForeverKnights Forever Knights]]) | [[Characters/Ben10VillainsAlienForce Alien Force]] | '''Ultimate Alien''' | [[Characters/Ben10VillainsOmniverse Omniverse]]\
14'''See also:''' [[Characters/Ben102016 Ben 10 (2016)]]-]]]]]
15
16A character subpage for Characters/Ben10 villains debuting in ''WesternAnimation/Ben10UltimateAlien''.
17----
18[[foldercontrol]]
19!!Arc Villains
20[[folder:Aggregor]]
21[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/aggregor.png]]
22[[caption-width-right:350:[[labelnote:Click here to see his Ultimate Aggregor form]]\
23https://static.tvtropes.org/pmwiki/pub/images/ultimate_aggregor_1858.jpg[[/labelnote]]]]
24->'''Voiced by:''' Creator/JohnDiMaggio
25-->''"No one escapes Aggregor!"''
26
27An Osmosian (Kevin's species) criminal who serves as the main villain in season 1. Aggregor is attempting to collect five aliens from the Andromeda galaxy and absorb them with a help of a machine enhancing his absorption powers so he can become strong enough to get his hands on what he calls the "Ultimate Prize". The aliens escaped on Earth split up to escape him, leading to his arrival on Earth. While initially not especially powerful, Aggregor is a competent fighter and overall an amazingly savvy schemer who was able to trick the heroes into reaching his goals for most of his appearance.
28----
29* AllYourPowersCombined: the first step in his plan is to permanently assimilate [[ElementalPowers Fire, Water, Earth, Wind, and Electric]] powers from a quintet of aliens from the Andromeda Galaxy.
30* AntiMagic: Courtesy of absorbing Galapagus.
31* BadassLongcoat: With no shirt, underneath.
32* BigBad: For the first season of ''Ultimate Alien'' [[spoiler:until he ends up [[HijackedByGanon hijacked by Ultimate Kevin]]]].
33* BioAugmentation: According to WordOfGod, [[http://ask.fm/DerrickJWyatt/answer/121454816628 he's a lab experiment]].
34* BodyHorror: His first use of Galapagus' powers involves multiple ''vents opening on his body''. YMMV on how it compares to [[spoiler:Ultimate Aggregor]].
35* BroughtDownToNormal: [[spoiler:Thanks to Kevin absorbing his powers. It's assumed he can still absorb matter and energy since that's considered "normal" for Osmosians.]]
36* ChuckCunninghamSyndrome: After being defeated, he's not really brought up afterward. Even ''Omniverse'', a series fond of bringing up series' continuity, doesn't ''ever'' get an obligatory mention despite almost [[spoiler:taking over the universe]], except for two throwaway mentions.
37* CombatPragmatist: As befitting a NoNonsenseNemesis, Aggregor will do anything to win a fight. Be it cheap shots, retreating or misdirection.
38* ContrastingSequelAntagonist: In contrast to the previous villains of the series, Aggregor is more of an intergalactic threat that seeks to obtain the Map of Infinity that will allow him to enter the forge of creation and absorb a baby Celestialsapien to [[GodhoodSeeker become a god]] and he is also a lab experiment created by using Kevin’s DNA to recreate the latters powers.
39* DiscOneFinalBoss: [[spoiler:He's the main villain that drives the plot for most the first season, but Kevin ousts him before the finale.]]
40* EvilCounterpart: To Kevin. As noted in ShadowArchetype, he is very similar in role and personality to Kevin in the first show, as well as being of the same species, with the same powers and love of absorbing energy. Kevin seems to be aware of how similar they are, and has apparently taken this to heart given how intense he is about stopping him.
41* EvilSoundsDeep: He’s got a very deep, gravelly, sinister voice courtesy of Creator/JohnDiMaggio. As for the evil part, well....he's a ruthless mass-murderer who seeks to become a god.
42* GodhoodSeeker: [[spoiler:His ultimate plan was to absorb the powers of a Celestialsapien and reshape the universe to his whim.]]
43* HateSink: At the time of his debut, Aggregor is quite possibly the most vile villain save for Vilgax. He's a malevolent Osmosian, whose evil was that which made even Ben Tennyson take him seriously. Sadistic, unsympathetic, ruthless, and callous, Aggregor's selfish pursuit of power has destroyed many innocent lives, and was remorseless over kidnapping peaceful aliens if only so he could abuse their powers for his own advantage. He is willing to do whatever it takes to get his powers, even if he has to betray, manipulate, and kill to get his way.
44* HiddenAgendaVillain: When he is first introduced, the only thing known about his goal is that he intend to capture the Andromeda Five and permanently absorb their powers so he can acquire what he calls the "Ultimate Prize", but it's left unclear what he exactly is talking about. Only later do we learn he needed their powers to [[spoiler:acquire the various pieces of the Map of Infinity so he can reach the "Forge of Creation"]], which is only revealed in his last appearance to be [[spoiler:the Celestialsapiens home so he can acquire Godlike powers by absorbing a Celestialsapiens infant.]]
45%%* HornedHumanoid: Very small horns, but it still counts. (Doesn't describe the "humanoid" part.)
46* KnightOfCerebus: His debut in the first episode of Ultimate Alien marked the beginning of the first season's main StoryArc which made the already DarkerAndEdgier ''Alien Force'' even more darker. Relentless in his pursuit of power and leaving a trail of bodies wherever he went. With every encounter with our heroes, the evil Osmosian [[InvincibleVillain always emerged victoriously]], and he came [[NearVillainVictory dangerously close]] to achieving his ultimate goal.
47* LogicalWeakness: His OneWingedAngel form is nigh unstoppable, but none of the aliens he absorbed do anything to increase his speed and reaction time. While not a trouble in most situations, the one time he fought Ultimate Cannonbolt in an enclosed space was also the one time he was outmatched and visibly struggled to keep track of him.
48* ManipulativeBastard: On several occasions, Aggregor uses the heroes to capture one of the Andromeda aliens for him.
49* MeaningfulName: He aggregates (collects) the powers of other aliens. It also sounds similar to "[[https://en.wikipedia.org/wiki/Egregore egregore]]," an occult entity that arises from multiple people, and takes on the form of a watcher or angel. His powers come from a group of others, and [[spoiler: he would've indeed become a divine being had he absorbed the infant Celestialsapien]].
50* NearVillainVictory: [[spoiler:The only reason he didn't achieve his goal to absorb an infant Celestialsapien is because Kevin absorbed all of the unlocked DNA within the Ultimatrix, losing his sanity in the process, and put him on the receiving end of a CurbStompBattle.]]
51* NighInvulnerability: As Ultimate Aggregor he is immensely durable due to the combined SuperToughness of Galapagus, Bivalvan, P'andor, and Andreas. Best shown off by enduring a NoHoldsBarredBeatdown from Humongousaur and getting back up like nothing happened.
52* NoNonsenseNemesis: Unlike most of Ben's other enemies, like [[ArchEnemy Vilgax]] and [[ANaziByAnyOtherName the Highbreed]], Aggregor is ''not'' an OrcusOnHisThrone and is perfectly willing and able to carry out his plans himself rather than relying on his {{mook}}s; he personally captures the five Andromeda aliens, going so far as to impersonate a Plumber to do so, and shoots Addwaitya in the back before making off with the Alpha Rune.
53* NoShirtLongJacket: Doesn't wear a shirt underneath his BadassLongcoat.
54* PoweredByAForsakenChild: In "The Forge of Creation", it's revealed the final step of his plan is to [[spoiler:absorb energy from a Celestialsapiens infant, allowing him to gain RealityWarper powers]].
55* OneDegreeOfSeparation: [[spoiler:WordOfGod confirms he was created by the Rooters with Kevin's DNA, meaning he was a part of the Rooters' conspiracy. However, his mind was wiped by Servantis and he became a threat on his own.]]
56* PowerCopying: Like Kevin, His base power allows him to steal the abilities, and apparently life force, of whoever he touches. However, he can only use the stolen power at a tenth of its original strength, and it wears off. He's built a machine to bypass this problem, fully and permanently absorbing the power of the five aliens he's hunting at the cost of killing them.
57%%* RedEyesTakeWarning: [[spoiler:And he retains this colour as Ultimate Aggregor]].
58* RubberForeheadAlien: In his default form he looks essentially like a human with a row of spikes on his head and red eyes. [[spoiler:He IS human. Osmosians aren't really aliens; they're a human subspecies.]]
59* ShadowArchetype: Aggregor is basically Kevin if he ''didn't'' reform: sadistic, merciless, and with the power to absorb energy, complete with his body mutating to accommodate the stolen alien power. In other words, he's just like Kevin 11,000.
60* TheSociopath: Ruthless, [[TheUnfettered willing to go through any extreme to reach his goals]], and coldly indifferent about all the horrors he accomplishes.
61* SuperStrength: As Ultimate Aggregor he becomes strong enough to overpower and defeat Humongousaur with just a few blows.
62* SuspiciouslySimilarSubstitute: A sociopathic alien with an open-shirted design voiced by John [=DiMaggio=] and with a connection to Kevin? Why does this sound so much like Ragnarok?
63* TheUnfettered: He will do absolutely ''anything'' to reach his goal, including murder, kidnapping, or even dooming an entire planet.
64* WalkingShirtlessScene: Notably, [[BestKnownForTheFanservice this is often criticized by Derrick J. Wyatt when asked about his opinion of the character]].
65* WeakButSkilled: Aggregor's not as powerful as Vilgax or Maltruant. But, he's a brilliant schemer and skilled with his spear. He becomes StrongAndSkilled as Ultimate Aggregor however, utilizing all the abilities of the aliens he's absorbed to easily defeat the heroes in almost every encounter.
66* WhatHappenedToTheMouse: [[spoiler:He is not mentioned again after being defeated by Kevin. WordOfGod said he's currently incarcerated, which was later confirmed in ''Night of the Living Nightmare''.]]
67* TheWorfEffect: He was damn near an InvincibleVillain as Ultimate Aggregor, but Ultimate Kevin makes very short work of him to show that he's an even bigger threat than Aggregor.
68* WithGreatPowerComesGreatInsanity: It's subtle, but if you take a close look, his personality slightly changes after he absorbed the Andromeda Five. When in his regular Osmosian form, he was very stoic, cold-blooded, calculative and rarely spoke. After he went OneWingedAngel, he is much more likely to talk with and [[IShallTauntYou taunt]] the protagonists, shows slightly more emotions and generally acts a bit hammier.
69[[/folder]]
70
71[[folder:Dagon]]
72!Dagon
73[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/dagon_1.png]]
74->'''Voiced by:''' Creator/JohnDiMaggio
75-->''"[[ArcWords Everybody will bow before him!]]"''
76
77A [[Creator/HPLovecraft Lovecraft-esque]] EldritchAbomination and DimensionLord who attempted to take over Earth during the Middle Age. His invasion was stopped by Sir George, who eventually took his heart apart, leaving him weakened, and sealed him away in his own dimension. George then created the Forever Knights to ensure the thing would never escape again. Unfortunately, following George's departure, the Forever Knight forgot their goal over time, and a faction of them ended up accidentally breaking the seal, partially freeing Dagon in the process. This, coupled with the intervention of a sect worshiping Dagon, eventually led to his imminent return as the major BigBad for season 3 of Ultimate Alien.
78----
79* AGodAmI: He doesn't explicitly state it, but he could as well say so. Of course, considering what [[EldritchAbomination he is]]...
80* AdaptationalAbomination: Dagon is revealed to be the identity of the dragon that Saint George fought. Unlike in the original legend, the dragon is merely one form of a Cthulhu-like MultiversalConqueror whose mere visage is unpleasant to look at.
81* AdaptationalBadass: In the original tale of St. George & The Dragon, he was slain by George, but here, even getting his heart cut out didn't kill him. In addition, he has the ability to ''mind control'' people.
82* AndShowItToYou: Old George tore out his heart. This didn't kill him and he had to be turned into SealedEvilInACan.
83* ArchEnemy: To Sir George.
84* BigBadEnsemble: With Vilgax and Sir George in season 2 of ''Ultimate Alien''.
85* CaptainErsatz: Is named after a Great Old One, but his characterization heavily borrows from Cthulhu.
86* ContrastingSequelAntagonist: Unlike the Highbreed and Vilgax, who are humanoid alien conquerors with armies under their belt, and Aggregor, a physical powerhouse with planner qualities, Dagon is an EldritchAbomination whose abilities are much more powerful and [[RealityWarper greater in scope]] than both of the previous antagonists. [[spoiler:He ends up getting [[HijackedByGanon usurped by Vilgax]].]]
87* {{Cthulhumanoid}}: Dagon's appearance is primarily based on Cthulhu's cephalopod aspect, though the humanoid part is debatable.
88* DealWithTheDevil:
89** Though he is not named, it's been confirmed in the credits of "The Enemy of My Frenemy" that [[spoiler:HE was the "Old One" who was willing to accept 600,000 souls from Charmcaster in exchange for her father's revival]].
90** [[spoiler:Does it again with Vilgax in the finale by offering him more powers in exchange for serving as his dragon. Ironically, he ends up on the losing end.]]
91* DimensionLord: Comes from another Dimension where is the ruler, and has conquered many universes before arriving to ours.
92* DraconicAbomination: While Dagon's primary manifestation is an octopus-like entity, he can also manifest as a black dragon with a green underbelly.
93* EldritchAbomination: He's not named after a Great Old One for nothing. Just ''looking'' at it in a PensieveFlashback causes Ben, Gwen and Kevin to freak out. Consider what they fight on a daily basis and that says a lot about how horrible it is.
94* EnergyBeings: His essence "''is'' power." [[spoiler:This allows Vilgax to absorb him.]]
95* EvilerThanThou: [[spoiler:Finds out too late that Vilgax was this to him.]]
96* EvilIsBigger: Dagon is ''absolutely massive'', his base form is so large that even Ultimate Way Big is just the size of large bug next to him.
97* EvilVsEvil: To his most personal enemy Sir George.
98* FinalBoss: He is the last villain Ben and his team face in the ''Ultimate Alien'' series.
99* GreaterScopeVillain: Was the dragon the Forever Knights were founded to fight, making everything connected to them his fault. [[spoiler:At least until Vilgax scams him.]]
100* HealingFactor: At several points in ''The Ultimate Enemy'', his injuries heal as soon as he gets them.
101* InconsistentSpelling: A lot of subtitles and staff members spelled his name as "Diagon".
102* KilledOffForReal: [[spoiler:He ends up converted into energy and absorbed by Vilgax. Then Ben seals the power inside Ascalon, which is destroyed by Azmuth.]]
103* MindRape: His Lucubra minions inflict this to mortals.
104* MultiversalConqueror: He had taken over a hundred dimensions by the time he fought George, according to Azmuth.
105* OurDragonsAreDifferent: [[spoiler:He is depicted as one by the Forever Knights.]]
106* OutGambitted: [[spoiler:Thought he was the one pulling Vilgax's strings, only to find out too late it was the other way around the entire time.]]
107* RealityWarper: He displays abilities such as creating acid rain, size-shifting, transmutation, [[spoiler:and stripping George of his immortality]].
108* RedBaron: He never got one on-screen during his appearances, but Ben refers to him as "Dagon the Destroyer" in ''Omniverse''.
109%%* RedEyesTakeWarning: Given his resemblance to Vilgax.
110* SealedEvilInACan:
111** Was imprisoned in his universe by Old George. Justified as ''cutting his heart out'' wasn't enough to kill him so there weren't many other options.
112** [[spoiler:Dagon may have been ultimately sealed inside [[CoolSword Ascalon]] when Ben uses it to steal his power from Vilgax, if he wasn't killed by Vilgax absorbing him.]]
113* SparedByTheAdaptation: In the original tale of St. George & The Dragon, the Dragon was slain, but in this show's version of the story, he survived and was imprisoned.
114* WorldWreckingWave: When he comes close to being freed, one of these is set off, turning every unprotected human on Earth into his Esoterica.
115[[/folder]]
116
117[[folder:Forever Knights]]
118Forever Knights debuting in ''Ultimate Alien'' include:
119* Sir George
120* Forever King Urian
121
122->For more information on them see [[Characters/Ben10ForeverKnights this page]]
123[[/folder]]
124
125!!The Esoterica
126[[folder:General]]
127!!The Esoterica
128[[quoteright:349:https://static.tvtropes.org/pmwiki/pub/images/_circle_soldiers_8265.png]]
129
130The Esoterica, also known as the Flame Keepers' Circle, are a group introduced in season 2 of ''Ultimate Alien''. Though they initially appear to be a philanthropic organization that believes in aliens helping humans to evolve, they actually are a {{cult}} worshipping Dagon, and intending to bring him back on Earth. The season 3 story arc focuses on a war between them and the Forever Knights.
131----
132* ChurchOfHappyology: Appear to be this at first, but [[NotSoHarmlessVillain there is more to them than meet the eyes]].
133* ETGaveUsWiFi: They believe Dagon was a benevolent alien who provided technology to Humanity. He wasn't.
134* EliteMooks: As far as mooks go, they are quite competent and dangerous on their own. They possess actual powers, know how to use them to their advantage, and are pretty skilled in a fight.
135* EvilVersusEvil: Against the Forever Knights.
136* FacelessMooks: They wear masks that give them this look.
137* {{Foil}}: To the Forever Knights; both are ancient organizations of [[WellIntentionedExtremist Well-Intentioned Extremists]] related to Dagon with superstitious tendencies. However, the Knights were created to protect Earth from him and despise aliens and magic, whereas the Esoterica worship him and believe in having more contact with aliens.
138* TheHeavy: Technically, they never were part of the BigBadEnsemble, since they kept working either for Dagon or [[spoiler:Vilgax]], but since Dagon didn't show up until the finale, they were the ones who acted the most for his side of the Ensemble.
139* RedAndBlackAndEvilAllOver: With a bit of gold added to the mix.
140* ReligionOfEvil: Though they don't appear to be aware of it.
141* SuperPowerLottery:
142** EnergyBall: Their main form of attack behind martial arts-like techniques.
143** {{Teleportation}}: Through jumping between dimensions.
144* UnwittingPawn: [[spoiler:To Vilgax, who they mistake for Dagon. Later, they truly followed Vilgax after he became Dagon.]]
145* WellIntentionedExtremist: Many of them seem genuinely convinced that Dagon is going to make things better for humanity.
146[[/folder]]
147
148[[folder:Conduit Edward]]
149!!Conduit Edward
150[[quoteright:187:https://static.tvtropes.org/pmwiki/pub/images/300px-conduit_edwards_8355.png]]
151-> '''Voiced by:''' Creator/JohnDiMaggio
152
153The leader of the Esoterica cult.
154----
155* BitchInSheepsClothing: Initially introduced as a very nice, polite, well-intentioned businessman. Later revealed as a fanatic cult leader who has no problem threatening to trap Julie between two dimensions to get Ben to obey him.
156* CorruptCorporateExecutive: Played with; he isn't seen doing anything technically criminal, but he is a wealthy businessman, and he ''does'' lead an evil cult trying to bring back an EldritchAbomination in our world.
157* TheDragon: To Dagon.
158* DyingCurse: [[spoiler:To George, after getting impaled on Ascalon.]]
159-->[[spoiler:"May Dagon curse you."]]
160* ImpaledWithExtremePrejudice: [[spoiler:How he meets his demise at the hands of George.]]
161* InTheHood: His Esoterica attire.
162* KilledOffForReal: [[spoiler:And ''on-screen'', at that.]]
163* UndyingLoyalty: To Dagon. [[spoiler:Best shown when he ''actually dies.'']]
164[[/folder]]
165
166!!Independent Villains
167[[folder:Will Harangue]]
168!Will Harangue
169[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/will_harangue.png]]
170[[caption-width-right:350:Click [[labelnote:here]]\
171https://static.tvtropes.org/pmwiki/pub/images/alien_harangue.png[[/labelnote]] to see him [[spoiler:as an Alien]]]]
172->'''Voiced by:''' Creator/JohnDiMaggio
173
174An anchorman who for unknown reasons developed a violent hatred of aliens after Ben's existence was revealed to the world in ''Ultimate Alien''. Harangue is convinced that aliens are a menace (especially Ben), and passes most of his time trying to convince everyone that he is right. Occasionally, he will also attempt things against Ben himself, but most of his appearances only have him criticizing Ben on TV.
175----
176* BlatantLies: He tried to save his reputation after the Incursean Invasion by pretending he was acting undercover to save Earth and was prevented from doing it by Ben. Nobody buys it. Not even [[MadScientist Chadwick]].
177* CorruptedCharacterCopy: Of [[ComicBook/SpiderMan J Jonah Jameson]], being another newsman who uses his platform to slander the resident teen hero. However, while Jameson dislikes superheroes because he doesn't trust masked figures and thinks the heroes should be held accountable for the collateral damage they cause, Harangue is just a fantastic racist who goes after Ben out of FantasticRacism towards aliens, to the point of supporting the Incursean Invasion if it means getting rid of Ben, [[EveryoneHasStandards something Jameson would never do.]]
178* EvenEvilHasStandards:
179** He seems to draw a line at mass alien genocide, if only because no spin doctor could make that go over well with the public.
180** WordOfGod is that he disapproved of the Flame Keeper’s Circle and rightfully believed they were dishonest in their presentation to the public.
181* {{Expy}}: He's [[ComicBook/SpiderMan J Jonah Jameson]] mixed with [[ComicBook/XMen Senator Kelly]] as a TV pundit.
182* FantasticRacism: Against aliens. [[{{Hypocrite}} Though that doesn't stop him from siding with the Incurseans during their invasion]].
183* HateSink: There is nothing to like about this guy. He besmirches Ben and supports the Incursean Invasion in "The Frogs of War". [[spoiler:It's amusing to see him get splashed by Ben as Water Hazard (even though it was an accident) and get mutated into an alien in "Return to Forever".]]
184* HumiliationConga: [[spoiler: Suffers this in "The Frogs of War". Due to supporting the Incurseans, he loses his viewers and by the time of "Return to Forever", he gets mutated into an alien.]]
185* {{Hypocrite}}: Keeps calling Ben a menace on TV and denouncing [[DestructiveSavior the collateral damages he causes in his heroic acts]]. That coming from the guy who built a giant KillerRobot [[PickOnSomeoneYourOwnSize just to hunt down]] [[WouldHurtAChild a 16-year-old kid]], and pretty much caused as much, if not more, damage than Ben by doing so.
186** He makes arguments against aliens in "Frogs of War", even citing Ben as a possible alien invader. The second part has him ''supporting and praising their new frog-like overlords'' for getting rid of Ben. The public didn't miss this one, though, and it cost him their support.
187* IrrationalHatred: There is no stated reason as to why he hates aliens (especially Ben) so much. Though it is implied that he is racist against aliens partially for rating, partially just to be harsh.
188* {{Jerkass}}: There are many other names for him, though ''nothing'' seems strong enough. He finally learns this ''the hard way'' [[spoiler:when Ben turns Harangue into an alien]].
189* KarmaHoudini: Pretty much got off scot-free for his actions in "Computer Games"; even with him nearly toppling the ''freaking '''Washington Monument''''' on Live TV[[note]]which would have easily landed Harrangue several consecutive lifetime sentences in federal prison[[/note]], save for the billions he spent on the robot. [[AndThatsTerrible And his car]].
190** This trope is [[KarmaHoudiniWarranty finally avoided]] in "Return to Forever", which reveals that he lost viewers after "Frogs Of War" due to siding with the Incurseans, and then [[spoiler:[[KarmicTransformation gets permanently mutated into a tentacled alien hybrid]]]]. On top of this, in ''The End of an Era'', it's shown that Jimmy Jones is now a news reporter and Harangue is his cameraman, meaning he was booted off the desk.
191* LaughablyEvil: As much of an unrepentant {{Jerkass}} as he is, many of his attempts to smear Ben are so pathetic it crosses the line right back into hilarious.
192* ManipulativeEditing: He resorts to this at times to paint Ben in a bad light. It's pretty blatant, but it convinces people anyway.
193* MeaningfulName[=/=]PunnyName: He goes on long, critical and aggressive rants about Ben on a regular basis, so of course his last name means ''exactly that''.
194* MonumentalDamage: very nearly topples the Washington Monument with his KillerRobot during his fight against Ben; only for Ben as Humongousaur to catch it and set it upright. Following the fight, Will uses ManipulativeEditing to play the video recording in-reverse to make it seem like Ben was slowly lowering the Washington Monument to the ground.
195* NeverMyFault: Spending the whole of "Frogs of War" vigorously [[TheQuisling kissing the Incursean invaders' jackboots]] has torpedoed his ratings. [[BlatantLies He insists that he was trying to undermine them before Ben ruined everything]], which no-one buys at all, and cannot understand why people think he's the bad guy.
196* PayEvilUntoEvil: Ben finally gives this to him by shooting water at him as Water Hazard. With the randomizer function on and Ben creating accidental damage, what he did to Harangue was obviously not an accident, especially since Ben's response to this is a sarcastic-sounding "Oooops!". Ben does it again by [[spoiler:using Juryrigg to mess with the Forever Knights' machine to mutate Harangue into an alien]].
197* TheQuisling: Gladly sings the praises of the Incurseans when they exile Ben from Earth. [[KarmaHoudiniWarranty This is what finally turns the general public against him]].
198* {{Sadist}}: In that one of the reasons that he's racist against aliens is just to be harsh, apparently taking joy in his harshness.
199* SitcomArchNemesis: When he is not building KillerRobot or secretly helping criminals, the worse things he does to Ben is insulting him on TV.
200* ShutUpHannibal: Finally, in "Frogs of War" Ben does this to him as Water Hazard. He should've done something like this a long time ago.
201* StrawmanPolitical: Though a blender of several political pundits (as one message board noted: he's like the worst of Bill O'Reilly, Keith Olbermann, Glenn Beck, Al Franken, and even Stephen Colbert mixed in a blender).
202** ObfuscatingStupidity: A lot of the StrawmanPolitical pundit stuff is for show; behind the scenes, he's pretty sinister.
203* VillainWithGoodPublicity: Zigzagged. Despite ''many'' problems in his smear campaign against Ben, he not only managed to somehow avoid being arrested by the feds, but also seems to still have enough of a following to keep his show. He finally lost it in "Return to Forever", because he supported the Incursean Armada. However, he got it back after being turned into an alien hybrid, if only because an alien anchorman is a novelty to the general public. Then his ManipulativeEditing was exposed, ruining his reputation once again.
204* WouldHurtAChild: In "Computer Games", he spent billions of dollars to build a KillerRobot that would ''kill'' Ben, a 16-year old kid.
205[[/folder]]
206
207[[folder:Addwaitya]]
208!Addwaitya
209[[quoteright:320:https://static.tvtropes.org/pmwiki/pub/images/14_105810721084_107510761077_108810861078107610721077109010891103_10841072107510801103_mkv_000964172_2811.jpg]]
210[[quoteright:240:https://static.tvtropes.org/pmwiki/pub/images/adwaita_ov_4781.png]]
211->'''Voiced by:''' Creator/JohnDiMaggio (''Ultimate Alien''), Creator/SteveBlum (''Omniverse'')
212
213A villain introduced in "Where the Magic Happens", and the BigBad from Charmcaster's perspective. A Geochelone Aerio magic-user, Addwaitya was once a revered philosopher amongst his people, until he somehow ended up in the possession of the Alpha Rune, an artifact that granted him control over Magic itself. He used it to take over the dimension of Ledgerdomain, exterminating the civilization of human spellcasters who had been living here and enslaving the others. Hex and Charmcaster were the only known survivors thanks to the sacrifice of Charmcaster's father, Spellbinder.
214----
215* AboveGoodAndEvil: What he, and any possessor of the Alpha Rune, perceive themselves as due to their [[AGodAmI practical godhood]]. He doesn't care about helping or harming the universe, just about maintaining a tight grip on his dimension.
216* AndIMustScream: [[spoiler:Charmcaster puts him in this situation after she overthrew him...twice, in fact, through two different methods. The second method ends up a subversion, as he's mostly kept in her magic bag where he is free to move around like normal.]]
217* ArchEnemy: To Charmcaster.
218* AssholeVictim: [[spoiler:Probably the only one of Charmcaster's victims that no one will miss. Though his life was returned to him afterwards.]]
219* BigBrotherIsWatchingYou: He uses magical drone-like creatures to watch everything that happens in Ledgerdomain.
220* BlowYouAway: Though he's never been shown using them, and despite lacking holes in his torso, WordOfGod states that he still has his specie's wind abilities.
221* CharacterizationMarchesOn: His personality in ''Omniverse'' is much more sane and pragmatic. [[spoiler:He's [[EnemyMine willing to work with Gwen, Darkstar, and the reformed Hex]] to get out of Charmcaster's bag, manipulating Charmcaster with poisonous advice to eventually let him out, and is very blunt that he hasn't changed his ways about planning to rule Ledgerdomain.]] A lot of it is probably due to not having the Alpha Rune on-hand anymore, which has damaging effects on a person's sanity.
222* DimensionLord: While he is never seen attempting to conquer ours, he does rule another dimension.
223* {{Expy}}: A DimensionLord with a flaming head... looks like [[Comicbook/DoctorStrange Dormamuu]] has a relative.
224* FallenHero[=/=]FromNobodyToNightmare: WordOfGod states that he was originally a revered philosopher of his species until he got his hands on the Alpha Rune.
225* GodIsEvil: Galapagus actually invokes his name in a "Thank God" context, suggesting he is revered as a god by his people. However, WordOfGod states that no one knows that he became corrupt, and that Geochelone Aerio assume that Addwaitya is kind and gentle because that's how they are.
226* InconsistentSpelling: His name has been spelled as "Adwaita" by staff members and other sources in the past.
227* KarmaHoudini: [[spoiler:In ''Third Time's a Charm'', he, Hex, and Darkstar are freed from Charmcaster's bag, and regain their original forms, while Charmcaster herself ends up trapped inside her own bag. Darkstar is arrested, but Addwaitya just thanks/congratulates Gwen with a sinister slow-clap for getting them out, and teleports away. He'd made it clear in the episode that he hadn't changed one bit, so Gwen and company are in for trouble now.]]
228** This has to do with the Friedkin University episodes being a PoorlyDisguisedPilot for a Gwen spinoff. If it had gotten off the ground, Addwaitya would have become the BigBad.
229* ManipulativeBastard: [[spoiler:From his containment trinket in Charmcaster bag, he gives "advice" to aid his "master", having her take a path of action that ultimately lead to his freedom. His slow-clap and sarcastic congratulation to Gwen for freeing him later only emphasizes this.]]
230* MySpeciesDothProtestTooMuch: As demonstrated by Galapagus, Geochelone Aerio usually are peaceful, innocent, kind beings who don't even know how to tell a lie. Addwaitya... [[TheSociopath is none of those things]].
231* NinjaPirateRobotZombie: An alien turtle SorcerousOverlord and DimensionLord.
232* NotSoHarmlessVillain: While he ''was'' in [[DimensionLord position to be a big threat]] in ''Ultimate Alien'', he was [[OvershadowedByAwesome outsmarted by Aggregor in his introduction]], and his second appearance had him [[HowTheMightyHaveFallen reduced to Charmcaster's prisoner and a shadow of his former glory]]. In ''Omniverse'', not only is he implied to be more dangerous since time without magic power has made him completely sane, in that condition he actually manages to [[ManipulativeBastard outsmart and trick Charmcaster into getting herself defeated and thus helping him escape]] [[PoisonousCaptive while still being her prisoner]], and is on the loose when last seen.
233* PaletteSwap: He looks like a dark recolor of Terraspin, despite barely sharing his abilities. His ''Omniverse'' redesign avoids this, by adding a belt with a skull and loincloth, armbands, and with SpikesOfVillainy around his neck and shell.
234* PoisonousCaptive: [[spoiler:To Charmcaster in ''Omniverse''. Charmcaster insists she's his master now, but his all-too calm acceptance of this fact makes it rather obvious that he's playing her. As expected, the advice he gives her eventually leads her to being defeated by the heroes and Addwaitya is set free.]]
235* ReptilesAreAbhorrent: A rare case where turtles ''aren't'' an exception to the rule.
236* SeriesContinuityError: In ''Ultimate Alien'', he seems to be irreparably insane even without his magic and Charmcaster is very clearly implied to have physically killed him ''before'' she takes his soul. Due to ''Omniverse'' retconning that episode through BroadStrokes, he is alive, now sane, and implied by Charmcaster to have been turned into a statue from the start after she overthrew him.
237* SmugSnake: More like smug turtle, but in ''Ultimate Alien'', he is, for all his big talk, constantly overshadowed and outsmarted by bigger villains at the end of all his appearances. In ''Omniverse'', [[NotSoHarmlessVillain on the other hand]]...
238* TheSociopath: He was presumably a regular kind Geochelone Aerio once, but years and years of possessing the Alpha Rune have thoroughly corrupted him.
239* SorcerousOverlord: And an alien one, no less.
240* WithGreatPowerComesGreatInsanity: Years and years of wearing the Alpha Rune have made him a paranoid psychopath. [[spoiler:He is restored to sanity after spending a long time without it in Charmcaster's bag, though this doesn't change his unrepentantly evil and arrogant nature.]]
241* YouKilledMyFather: Is responsible for killing Charmcaster's father Spellbinder.
242[[/folder]]
243
244[[folder:Morgg]]
245!Morgg
246[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/morgg2.png]]
247->'''Voiced by:''' Creator/XanderBerkeley
248
249A corrupt warden who uses the Incarcecon in the Null Void as a drug operation. He's responsible for the death of Kevin's old mentor, hence why he's targeted by Ultimate Kevin.
250----
251* AssholeVictim: Not really but almost by Ultimate Kevin. Given that Morgg uses his job as a warden just for drug trafficking and using prisoners as slaves, he certainy had it coming.
252* DirtyCoward: He used a device that activated sonic collars on prisoners, but became completely defenseless after it got destroyed.
253* HateSink: Morgg is an [[WardensAreEvil incredibly amoral warden]] with absolutely no redeeming qualities. Not only did he kill Kwarrel, but he treats prisoners as slaves and forces them to mine a resource he can sell as a drug.
254* FromBadToWorse: He was nothing more than an amoral guard. Now he's a [[WardensAreEvil corrupt warden]] who uses the prisoners as slave labour in order to mine a resource he can sell as a drug.
255* WardensAreEvil: An amoral warden who uses the Incarcecon for drug trafficking and refuses to let the Plumbers find out.
256[[/folder]]
257
258[[folder:Captain Nemesis]]
259!Carl Nesmith (Captain Nemesis)
260[[quoteright:309:https://static.tvtropes.org/pmwiki/pub/images/Overlord_1298.png]]
261[[quoteright:309:https://static.tvtropes.org/pmwiki/pub/images/a_cool.png]]
262->'''Voiced by:''' Creator/ChristopherMcDonald
263->''"Evildoers, beware! Your nemesis is here-Captain Nemesis!"''
264
265Originally a famous super-hero operating before Ben even got the Omnitrix, Captain Nemesis ended up causing a fake kidnapping attempt on young star actor Jennifer Nocturne, so he could save her and come back on the scene. After Ben stopped the kidnapping, he grew jealous of him, to the point he eventually offered a "friendly competition" between them to see who was the best hero. Ben ended up defeating him, causing Nemesis's jealousy to turn into a grudge, and he upgraded his armor to a dangerous level before attempting to get his revenge on him. He eventually lost all common sense and became a villain.
266----
267* AccidentalMisnaming: Nemesis thinks Ben’s name is “Ten Bennyson”. Arguably, this is the [[{{Foreshadowing}} first sign that he's not the hero that everyone thinks he is]].
268* AttentionWhore: {{Deconstructed}}; over the years, he became this due to not standing the fact people were forgetting him. This ends up leading to his FaceHeelTurn.
269* BrokenPedestal: Ben used to idolize him before finding out how much of a jerk he had become, and is clearly disgusted to see what he is now ready to do.
270* TheDarkSideWillMakeYouForget: Both Ben and Nesmith's Agent hinted that Nesmith was a great hero before, and WordOfGod stated that he had noble intentions when starting out as a superhero. However, years of lavishing the fame and fortune that accompanied the job twisted Nesmith into an AttentionWhore who fears being forgotten and, in turn, ''stages crimes'' that could potentially endanger innocents to solve them to stay relevant.
271* DisproportionateRetribution: He went evil, kidnapped Ben's LoveInterest, pulled out a SadisticChoice, and got a fixation on killing him. Why? Because Ben upstaged him and defeated him in a so-called "friendly contest".
272* EvenEvilHasLovedOnes: [[spoiler:His feelings for Jennifer Nocturne were apparently sincere, or at least became so.]]
273* EvilIsPetty: His reasons for making a FaceHeelTurn? Because a teenager, who was his biggest fan, gets much more attention than ''him'' and managed to beat him in a public "[[SarcasmMode friendly contest]]".
274* GreenEyedMonster: His major reason for turning evil was his jealousy toward Ben. Ironically, Ben didn't mean to ruin his reputation, and [[BrokenPedestal was actually a big fan of his before he turned evil]].
275* FallenHero: He started out as a superhero, but ended up trying to cause fake kidnapping to get popular again, eventually becoming a criminal due to his jealousy toward Ben. Both Ben and his Agent hinted he had been an actually great hero before.
276** Dwayne [=McDuffie=] stated on his website that originally he became a superhero to help people.
277* FeelingTheirAge: Invoked by Ben in their brief brawl in ''Catch a Falling Star''. While Carl boasts that he's physically stronger, Ben quips back that he's also older before sending the man flying with a double kick.
278* HeKnowsTooMuch: [[spoiler:He got a doctor to perform plastic surgery on him. Ben and Gwen later found the guy's body in a freezer.]]
279* HeroOfAnotherStory: According to him, he was an active hero ''before'' Ben's birth, had plenty of adventures during those years, and fought numerous foes as well.
280* HumansAreTheRealMonsters: Partway into his second appearance, Ben reflects on Nesmith's casual brutality, [[spoiler:which by this point has included outright murder]]. He's aware that his usual opponents are leagues more dangerous than a human antagonist, but he still finds facing a hate-filled psycho driven by a petty, one-sided grudge to be very disturbing. As Gwen says, humans can be monsters, too.
281* IgnoredEpiphany: When his agent tries to convince him against looking for revenge against Ben, he admits he does feel like he crossed the line when he freed the Robots from Dimension 12 just so he could save people from them, but thinks there is no way back.
282* KickTheDog: [[spoiler:He was one of the few villains in the show to be explicitly shown to assault/battery and have killed human beings. He gave Jennifer's driver a head injury by whacking him with a metal pipe, with the implication that the latter already gave him the keys to the limousine. Then at a later point, he even killed an innocent driver just to steal his car, which makes it worse as the innocent driver initially stopped with the intentioned to help.]]
283* KnightOfCerebus: By the time of his second appearance, Nesmith's character is completely PlayedForDrama[=/=]PlayedForHorror in the most realistic way possible with him [[spoiler:assaulting and murdering human beings]]. Not only does the entire episode he stars in lacks any sort of comical tone, but the tone of the narrative is more akin to a "prison thriller" than anything.
284* {{Mundanger}}: In "Catch a Falling Star", Nesmith is presented as a very realistic threat as an escaped convict, with the crimes he commits and his interactions with Jennifer being treated as completely serious in the episode and lacking any comedic tone. It really says a lot that Ben considers a hate-filled psycho driven by a petty, one-sided grudge to be very disturbing despite facing numerous life-and-death situations against powerful aliens over the years, and Gwen tells him that someone doesn't have to be an alien to be a monster.
285* NotSoHarmlessVillain: His first episode portrays him as something like a Silver Age superhero parody turned evil, who is rather quickly disposed of. [[spoiler:Come his next appearance, he becomes the first villain to successfully commit homicide in the whole saga.]] ''Omniverse'' undoes this, basically making him an evil parody of Iron Man/Tony Stark.
286* PetTheDog: [[spoiler:Surrendered so his accomplice Jennifer Nocturne could get medical attention.]]
287* PickOnSomeoneYourOwnSize: By the time of his second appearance, he has developed an obsession with taking his revenge on Ben.
288* PoweredArmor: He has a set of Iron Man-styled armor that tellingly [[AttentionWhore leaves his face exposed.]]
289* PowersDoTheFighting: When donning his PoweredArmor, or using any of his techs, Nesmith is a "relatively" force to be reckoned with. Without it, he can get overpowered in a physical fight by an ''untransformed'' Ben Tennyson.
290* RememberTheNewGuy: Apparently, he was already an active hero long before Ben was even born and Ben considers him his favorite hero and "the coolest guy in the universe" despite no mention of the guy before his debut episode. Justified since, according to Carl, people are forgetting about his heroics and people are paying more attention to Ben's alien transformations and heroics as seen through a flashback in ''Omniverse''.
291* {{Retcon}}: He had a face change operation in Ultimate Alien, but in ''Omniverse'', his face is back to its original appearance. That and everything else about him in the episode implies that in the new universe created in ''Omniverse'', the events of "To Catch a Fallen Star" never happened.
292* RevengeBeforeReason: After escaping prison and getting a good head-start, he insists on taking care of Ben before fleeing the country. He tries to justify it by pointing out how Ben will relentlessly pursue him, but the way he angrily rebuffs any talk of just letting it go makes it clear he wants to settle a personal vendetta. [[spoiler:However, he does surrender when Jennifer is injured so that she can receive medical attention]].
293* SelfMadeSuperpowers: While it's ambiguous if he designed his armored battlesuit on his own or in collaboration with others, it doesn't change the fact that he became a superhero through it and was active ''before'' Ben was even born.
294* ShoutOut: His appearance, abilities, and characterization owe a lot to ComicBook/IronMan, and some of his stories about his old adventures call to mind the ComicBook/FantasticFour. His name and style, as a whole, are a rather obvious ShoutOut to Silver Age Superheroes.
295* ThatManIsDead: "Captain Nemesis is dead! Now, call me ''Overlord''!". [[SubvertedTrope Although, it doesn't take]], since afterward they either call him by his real name or Captain Nemesis.
296* VillainProtagonist: In his second appearance, he's arguably this as the episode focuses more on his escape from prison, getting revenge on Ben, and his semi-emotional manipulation of Jennifer Nocturne. All while Ben and Gwen are on a mission to apprehend him and [[spoiler:react with horror on the trails of dead bodies he left behind]].
297* WouldHurtAChild: Once his jealousy of Ben reaches a zenith, he has no qualms about trying to kill a 16-year-old boy and even physically assaults him (untransformed) in his second appearance ''on-screen''.
298[[/folder]]
299
300[[folder:Trombipulor]]
301!Trombipulor
302[[quoteright:236:https://static.tvtropes.org/pmwiki/pub/images/trumbipulor_purge_3png.png]]
303[[quoteright:236:https://static.tvtropes.org/pmwiki/pub/images/Trombipulor_Omniverse_4842.png]]
304->'''Voiced by:''' Creator/DeeBradleyBaker (''Ultimate Alien''), Creator/EricBauza (''Omniverse'')
305-->''"You think you can stop me? I am Trombipulor! The Galaxy's biggest EvilGenius! In Height ''and'' Weight"''
306
307An elephant-looking alien criminal who claims to be the biggest EvilGenius in the galaxy.
308----
309* AardvarkTrunks: An inversion; while he has a normal-looking trunk in ''Ultimate Alien'', in ''Omniverse'' his mouth is located at end of his trunk.
310* AscendedExtra: In ''Ultimate Alien'', he was just a {{Bit Part Bad Guy|s}} who showed up a couple of times and did very little. His first ''Omniverse'' appearance gives him a whole episode.
311* BitPartBadGuys: Was introduced as this in ''Ultimate Alien''.
312* CruelElephant: Well, he's elephant ''like'' and certainly isn't pleasant.
313* CurbStompBattle: In ''Universe vs. Tennyson'', Way Big defeats him by literally stepping on him.
314* EvilSoundsDeep: In Ultimate Alien, courtesy of Dee Bradley Baker. Less so in Omniverse.
315* Flanderization: Omniverse plays up his elephant like traits, which were near non-existent in Ultimate Alien
316* GeniusBruiser: Claims to be one, but there is no real evidence to prove he is ''that'' much of a genius. He does, however, possess some degree of scientific knowledge, seeing how he was able to build an army of robotic mice.
317* TheJuggernaut: In ''Omniverse'', he proves to be somehow stronger than Humungousaur, despite the fact that Ben, Gwen and Kevin could apparently defeat him easily in ''Ultimate Alien''.
318* NotSoHarmlessVillain: In ''Omniverse'' he manages to hold his own against Humungosaur and Way Big, and nearly had Ben and Rook on the ropes. Had Bluikc and Driba not reprogrammed his rats, he would have killed them.
319** DiminishingVillainThreat: When he does come back in ''Special Delivery'' however, Ben uses Humungousaur against him and easily {{Curb Stomp|Battle}}s him. To add insult to injury, he does so with a move that had previously no effect on him.
320* PowerUpFood: Peanuts are regarded by his people as a "sacred substance" and "ultimate power". They cause him to [[MakeMyMonsterGrow grow to gigantic size]] and make him stronger than Way Big.
321* SuddenlyVoiced: In his first appearance, he spoke in elephant noises, which Ben understood through his universal translator. In his second appearance in ''Ultimate Alien'', and ''Omniverse'', he speaks English.
322%%* WarElephants
323* WhyDidItHaveToBeSnakes: He is ''terrified'' by mice or anything resembling them. He even based his robotic minions' design on them, believing this was would be terrifying to others. Needless to say, [[NightmareRetardant Ben and Rook are less than impressed]].
324[[/folder]]
325
326
327[[folder:Eon]]
328[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/eon_plantilla_482.png]]
329[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/eon_ua2_3083.png]]
330[[caption-width-right:305:[[labelnote:Click here to see his appearance in ''Race Against Time'']] https://static.tvtropes.org/pmwiki/pub/images/c1b692f69a3811e0911812313b10052d_small_7830.jpg[[/labelnote]]]]
331->'''Played by:''' Christien Anholt (''Race Against Time'')
332->'''Voiced by:''' Creator/YuriLowenthal (''Ultimate Alien''), Creator/JuddNelson (''Omniverse'')
333-->"The only predictable thing about me is that I'm unpredictable!"
334
335A villain who was first introduced in the live-action movie ''Film/Ben10RaceAgainstTime''. Eon's origin is... complicated, in that he's been given two entirely contradictory ones across his few appearances.\
336
337In ''Race Against Time'', a live-action adaptation confirmed to take place in a non-canon AlternateUniverse, Eon was presented as a Chronian, a {{Human Alien|s}} whose species was trapped in a different dimension and who was attempting to bring back his species through an artifact called the Hands of Armageddon to invade Earth. Since he himself was no longer able to activate the Hands, he captured Ben and forced him to turn into him, hacking the Omnitrix so his personality would take over. Ben, however, was brought back to his sense by Gwen, and then seemingly defeated Eon by throwing him through the Hands of Armageddon.\
338
339Another version of the character appears in the ''Ultimate Alien'' episode "Ben 10,000 Returns". He comes from an Alternate Universe but travelled into the Prime Timeline, where it's revealed he has been travelling through timelines chasing alternate versions of Ben. It's eventually revealed that he is actually an alternate version of Ben 10,000 who went evil and started travelling to absorb all the alternate versions of himself, turning them into his minions and intending to create a single timeline where he would be the only Ben Tennyson. He is eventually defeated when Ben and his future self destroy the Hands of Armageddon, supposedly erasing Eon from the timeline.\
340
341This version of the character reappears in ''Omniverse'' (albeit with more similarities with the movie version in his design). After Paradox trapped him in the Prime Timeline (particularly the past, present, and future), Eon attempts to get his hand on the scientist's Chrono Navigator, leading to a complex episode where 11-year-old Ben and 16-year-old Ben get their places switched. Following on from this, Eon allies with Vilgax and later Maltruant, which [[ChronicBackstabbingDisorder go about as well as one would expect for him]].
342----
343* AdaptationalJerkass: He was no saint in ''Race Against Time'', but at least had a somewhat understandable motive. His canon self has no sympathy whatsoever and is far worse, willing to risk destroying the entire cosmos.
344* AlienInvasion: What he intended to do in ''Race Against Time''.
345* AlternateSelf: In the Main Timeline, he is an alternate version of Ben.
346** The Eon featured in ''Race Against Time'' is an alternate version of the Eon featured in both ''Ultimate Alien'' and ''Omniverse''.
347* ArchEnemy: To Professor Paradox, who is his time-travelling nemesis that foils his plans to conquer all of space-time.
348* BadassLongcoat: In ''Race Against Time'' and ''Omniverse''; In ''Ultimate Alien'', he traded it for a BadassCape.
349* BadBoss: The ''Race Against Time'' incarnation of the character is shown at one point killing one of his minions out of anger because they fail to find Ben.
350* BigBad: Of ''Race Against Time''.
351* TheBusCameBack: He makes his first canonical appearance via "Ben 10,000 Returns". [[spoiler:He returns in the ''Omniverse'' episode "Ben Again", despite having supposedly been ''erased from time''.]]
352* ButtMonkey: Downplayed in ''Omniverse''. While he's still a major threat, he's also frequently betrayed or his plans don't work out the way they're ''supposed'' to.
353* CanonImmigrant: First appeared in ''Race Against Time'' only to return in ''Ultimate Alien'' and ''Omniverse''. Particularly notable for this trope that not only did the character get reintroduced into the source material, but it's the same ''version'' of the character who shares the same history (as RAT is literally an alternate timeline).
354* CharacterizationMarchesOn: In ''Ultimate Alien'' he was fairly stoic and calm, while his return in ''Omniverse'' made him far more brash and hotheaded while often ending up as the ButtMonkey.
355* ChronicBackstabbingDisorder: On the receiving end. Every villainous partnership he has made ends with him being betrayed.
356%%* DarkIsEvil: Wears a [[EvilWearsBlack black]] and [[PurpleIsTheNewBlack purple]] attire. (Partial context example that does not describe the "evil" part.)
357* DeathIsCheap: [[spoiler:At the end of "Ben 10,000 Returns", he's ''erased from time''. Or not, since he returns in ''Omniverse''.]]
358* DemotedToDragon: In his first appearance he was the BigBad. In his next two appearances he was a very tough reoccurring VillainOfTheWeek. By his subsequent appearances he is working for Vilgax and later Maltruant (with both eventually betraying him).
359* DimensionLord: In ''Omniverse'', Eon attempted to become this.
360* EvilBrit: In ''Race Against Time'', Eon speaks with an English accent and is the BigBad.
361* EvilCounterpart:
362** To Paradox, being a time traveler who is a villain.
363** To Ben 10,000, being an alternate adult version of Ben 10 who is villainous and opposes the Bens of all of reality.
364* ExpressiveMask: [[spoiler:His helmet in ''Ultimate Alien'' has eyes that move.]]
365* {{Expy}}:
366** He shares similarities with the supervillain ComicBook/KangTheConqueror from the Franchise/MarvelUniverse.
367** Also to [[Characters/DoctorWhoMasters the Master]] from ''Series/DoctorWho'', by virtue of being an EvilCounterpart ArchNemesis to Paradox, who is an {{expy}} of [[Characters/DoctorWhoDoctors the Doctor]].
368** He also has some similarities with The Time Trapper, being a villain of many, many origins and motivations, cycling through them easily and without much note. He even has a desolate "home time-zone" he is seen to operate out of. Like The Time Trapper, he is once thought to be a member of an ominous race of aliens and has turned out to be an evil future version of TheHero.
369* FallenHero: [[spoiler:The "Ben 10,000 Returns" version of the character is revealed at the end to be an evil alternate version of Ben 10,000. While the episode is non-canon in ''Omniverse'' (mainly through the series re-introducing the fact that the Ben 10,000 future from the Original Series is canon), the "Ben 10,000 Returns" version of Eon makes appearances.]]
370* IdiotBall: Notably defied; In ''Omniverse'', Eon is smart enough to quickly figure out where Paradox's Chrono Navigator is, and immediately thinks about going back to the moment where Paradox loses it and get it there, before being reminded by Paradox that doing so would be dangerous due to the time manipulation it would cause. [[spoiler:Even then, he still proves smart enough to travel to the moment where Ben finds it again in the future and take it there.]]
371* JokerImmunity: While he didn't appear that much so far, he ends up apparently killed at the end of all his appearances, and yet still finds a way to come back each time. Even being ''DeaderThanDead'' didn't stop him.
372* KnightOfCerebus: Surprisingly consistent among his appearances, where he doesn't crack jokes terribly often, poses much danger to Ben and his friends, and his [[TimeMaster powerset]] makes him something to take seriously. Even in ''Omniverse'', Ben, his alternate self, and Paradox struggle to defeat him.
373* LargeHam: He's significantly more bombastic in ''Omniverse.''
374* LaserBlade: Uses one in ''Omniverse.''
375* MesACrowd: With the reveal that his servants are actually alternate versions of Ben Tennyson, just like himself, this makes them a whole army of ''him''.
376* MultipleChoicePast: His backstory, motives, and general characterization change a lot between his appearances, causing a lot of potential confusion.
377* MultiversalConqueror: What he strives to be, travelling across the multiverse enslaving alternate versions of Ben Tennyson.
378* NoSenseOfPersonalSpace: He's a bit touchy-feely with Ben. Even though he's trying to get to the Omnitrix, he's always in Ben's face.
379* OhCrap: When Eon realizes Vilgax intends to wipe out the timelines of every alternate Ben Tennyson, which includes him.
380* OmnicidalManiac:
381** In "Ben Again", he declares if he is unable to conquer reality than he would instead destroy it.
382** He is also in cahoots with Vilgax and his plot to erases every version of Ben Tennyson from the space-time continuum. Unfortunately for Eon, that also includes himself, which he realizes too late.
383* PungeonMaster: In ''Omniverse'', Eon cannot go a ''second'' without making a time-based pun.
384* PurpleIsPowerful: His TronLines and powers have a signature purple glow. He also happens to be one of Ben's most powerful enemies.
385* RubberForeheadAliens: In ''Race Against Time'', Eon looks human, except for having [[AmazingTechnicolorPopulation pale white skin]] and (in his last appearance) [[https://vignette.wikia.nocookie.net/ben10/images/7/77/EonMovie63.png/revision/latest?cb=20190708013237 maroon marks around his eyes]]. [[https://vignette.wikia.nocookie.net/ben10/images/2/23/Eon_Transformation.png/revision/latest?cb=20190831040029 However, his younger Omnitrix counterpart]] [[HumanAliens looks completely human]].
386* SameCharacterButDifferent: A rare justified case, as there are many different timelines and thus many different Eons as well.
387* SignificantDoubleCasting: Being an alternate version of Ben, he shares voice actors with teenage Ben while masked and Ben 10,000 while unmasked in ''Ultimate Alien'', and with Ben 10,000 in ''Omniverse''.
388* ShoutOut: His plan in "Ben 10,000 Returns" is rather similar to [[spoiler:the BigBad in ''Film/TheOne''. Wiping out and absorbing all alternate versions of themselves.]]
389* TimeMaster: Though he has his limits, which varies according to the two incarnations:
390** ''Race Against Time'' Eon could stop time, ages things by shooting at them and travel through time, though he couldn't do the latter too much, or he would get weaker;
391** The Main Timeline Eon in "Ben 10,000 Returns" seemed to travel randomly until [[spoiler:the Hands of Armaggedon got activated where he wanted]]. He otherwise possesses the same ability to age things by shooting at them, including permanently destroy Ben's alien form by doing so (weirdly enough, Ben himself survived the process). In ''Omniverse, Eon seemed to have a better mastery of time travel but was still trapped by Paradox in the Main Timeline. He also couldn't stretch time too much without danger according to Paradox. He didn't show the aging ray ability from his previous incarnations, though.
392* TomatoInTheMirror: At the end of "Ben 10,000 Returns", he and his minions are all revealed to be [[spoiler:Ben Tennyson of an alternate timeline. Though since the Eon from the movie intended to turn Ben into a new Eon, we can't be sure he's the ''original'' Eon]].
393* TookALevelInBadass: While he wasn't exactly a joke in the live-action movie, he still was a threat mostly because he could prevent the Omnitrix from working and didn't stand much against Ben's aliens. His later animated incarnations have more versatile powers, are smarter and one of them could match ''[[FutureBadass Ben 10,000]]'' in a fight.
394* TronLines: In ''Race Against Time'' and ''Omniverse''.
395* VillainousBreakdown: [[spoiler:He suffers one in ''Omniverse''. When the time portals he creates begin to damage the timestream, he loses his cool and accuses Paradox of having tricked him. He then decides that if he can't rule the cosmos, he'll destroy it.]]
396* VillainDecay: Played with in ''Omniverse''. On the one, he does get humiliated a lot more making him seem less imposing than he was in ''Ultimate Alien''. On the other hand, he is ''far'' more dangerously ambitious in ''Omniverse'', going from conquering various timelines to almost destroying the entire Multiverse on ''several'' occasions.
397* VillainTeamUp: With Vilgax in "And Then There We None". Their partnership ends when Vilgax reveals that his plan is to wipe out every alternate timeline and its version of Ben. Since Eon is an alternate version of Ben, that means he gets erased as well.
398* WildCard: In ''Omniverse'', Eon is this by his own admission as his allegiance is unpredictable and he could be siding with anyone.
399[[/folder]]
400
401[[folder:Inspector 13]]
402!Inspector 13
403[[quoteright:320:https://static.tvtropes.org/pmwiki/pub/images/inspector_13_3086.png]]
404->'''Voiced by:''' Creator/DeeBradleyBaker
405
406Formerly one of the Weapon Masters of Techadon. In the ''Ultimate Alien'' episode of the same name, he attempted to steal the Ultimatrix from Ben. In ''Omniverse'', it is revealed that he was removed from the Techadon Empire for his failure to capture the Ultimatrix, and has become an independent businessman.
407----
408* ArmsDealer: After being disgraced, he puts his skills to use selling weapons to other villains.
409* AssholeVictim: When Albedo gets him.
410* BadassBookworm: A technological genius who knows how to use his arsenal for offensive and defensive purposes.
411* CrazyPrepared: Seems to have weapons and defenses to deal with ''every'' situation.
412* CreepyMonotone: Except for the one time he laughs, he is this.
413* EvilLaugh: Has one in his first appearance when Ben insists that the Ultimatrix isn't a weapon. And it's ''extremely'' creepy.
414* EvilGenius: It comes with the territory of his work.
415* EvilVersusEvil: In ''Omniverse'', Albedo's reason for impersonating Ben was to steal a polymorphic crystal to stabilize his transformations from him.
416* GadgeteerGenius: Comes with being one of the Techadons' creators.
417* HeWhoMustNotBeSeen: In-universe example; He is the only member of the Techadon Empire we actually get to see, and even then it's stated Ben and co. could see him and survive only because they were lucky.
418-->'''Ben''': Nobody has ever seen the Techadons' creators!
419-->'''Inspector 13''': Correction: Nobody has ever seen the Techadons' creators and ''survived''.
420* HisNameReallyIsBarkeep: Inspector 13 isn't just his title, it's his actual name.
421* HumansByAnyOtherName: Refers to Ben as a "Terran", which is a common term used in sci-fi used by extraterrestrials to refer to humans.
422* TheSpock: Extremely cold and logical.
423* SquishyWizard: He has access to extremely advanced technology, allowing him to deploy a whole arsenal of very powerful weapons, traps, [[MechaMooks Techadons]] and other defenses to fight, but once Ben is able to reach him with Four Arms for a direct fight, he is defeated in a single punch.
424* TerseTalker: Expresses ''entirely'' this way.
425* TookALevelInBadass: In his first appearance all it took was one punch from Fourarms to bring him down. In his second appearance he can fight evenly with several of Albedo's Ultimate alien forms and even gets the edge a few times.
426* YouHaveFailedMe: Prior to his first appearance in ''Omniverse'', he was removed from the Techadon Empire for failing to capture the Ultimatrix, and has since resorted to illegal trade.
427[[/folder]]
428
429[[folder:Prisoner 775]]
430!Prisoner 775
431[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/83e8ee81_5791_42e3_9d56_134cb936c689.png]]
432[[caption-width-right:350:''"Nothing will ever be okay... '''AGAIN!'''"'']]
433->'''Voiced by:''' Creator/DeeBradleyBaker
434
435A Merlinisapien who was once the leader of a revolution against a tyrannical and oppressive government, he was captured and exiled from his homeworld. He arrived on Earth seeking refuge and aid, but in spite of his pleas, Colonel Rozum imprisoned him in Area 51. Prisoner 775 spent 50 years imprisoned, during which time the revolution was destroyed and his family killed. The traumatic loss and his imprisonment left him a vengeful and unhinged wreck who will do anything it takes to get revenge on Rozum.
436----
437* AntiVillain: During his rampage on the town, he spares a police officer after learning he has a family and generally does his best to avoid hurting innocents... unless they happen to be [[RevengeByProxy Colonel Rozum's family.]]
438* ChameleonCamouflage: He can change color to blend in with his environment.
439* DeathSeeker: When Ultimate Wildmutt corners him, he demands and then pleads for Ben to do the deed.
440--> '''Prisoner 775:''' Do it! Finish me! Come on! Let me join my family! Do it! ''Do it!'' (Ultimate Wildmutt transforms back into Ben while he slides off the back of the car he was pinned against) ''Please'' do it! Please... finish me... I've got nothing...
441* FallenHero: He was once a heroic revolutionary fighting against a tyrannical dictatorship, but years of imprisonment and the loss of everything he loved left him a broken, vengeful madman.
442* HadToComeToPrisonToBeACrook: 775 was a refugee imprisoned inside [[HellholePrison Area 51]], resulting in the deaths of his family. By the time he gets out, he's lost everything and has nothing left but his revenge on Rozum.
443* HeWhoFightsMonsters: He was one an innocent and heroic refugee, but losing everything he held dear and years of imprisonment inside the hellhole that is Area 51 have left him the threat Colonel Rozum thought he was.
444* NominalVillain: 775 wanted to break free and get revenge on Colonel Rozum, who kept him prisoner in a POW camp for aliens for decades, without even giving him a chance to explain why he was on Earth. Because of this, he was unable to return to his planet, which was taken over by a dictator and his entire family was murdered. He plans to kill Rozum's wife and baby, [[WouldntHurtAChild but he hasn't the heart to do such a horrible thing]]; instead, he tries to trick Ben into killing him. And, when even that doesn't work, he tearfully begs to be killed, because there's nothing left for him.
445* NoNameGiven: 775's real name is never revealed.
446* PetTheDog: He spares a police officer's life after hearing that he has a family, which ends up foreshadowing that he had a family of his own.
447* RevengeByProxy: His plan for revenge against Colonel Rozum is to murder the man’s family in front of him and let him live just long enough to know the pain 775 has felt.
448--> '''Prisoner 775:''' I'm going to let you live, Rozum. Just long enough to know what it's like to lose your family.\
449'''Rozum:''' My family has nothing to do with this.\
450'''Prisoner 775:''' ''Neither did mine.''
451* TragicVillain: 775 is a refugee who lost everything due to Colonel Rozum's FantasticRacism, and while his plan for revenge is undoubtedly horrible, he's such a suicidal, broken wreck it's hard not to feel sorry for him.
452[[/folder]]
453
454[[folder:Alpha]]
455The main villain of ''Heroes United'', the {{Crossover}} with ''WesternAnimation/GeneratorRex''. See [[Characters/GeneratorRex here]] for more information.

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